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Mass Transfer

Mass Transfer
The film penetration model of mass transfer was enunciated by

Gilliland
Stefan
Toor and Marchello
Fick

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Temperature
All of these
Nature of the moisture
Nature of the solid

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Mass Transfer
For gas absorption, low viscosity solvents are preferred, because of their

Rapid absorption rates
Low pumping pressure drop
All of these
Better flow characteristics

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Mass Transfer
The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature.

Wet bulb
Dew point
Dry bulb
None of these

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Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

1
∞
< 1

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Mass Transfer
__________ equation applies to diffusivities in liquids.

Gilliland
None of these
Hirschfelder
Wilke and Chang

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